Operates in All-Electric Mode More Often and For
Longer Periods of Time

COSTA MESA, CA--Feb. 21, 2013: Hyundai Motor America has
announced pricing for the 2013 Sonata Hybrid, starting at $25,650 for the extraordinarily well-equipped
Sonata Hybrid and $30,550 for the new
range-topping Sonata Hybrid Limited. At $25,650 shoppers will discover the improved 2013
Sonata Hybrid achieves better fuel economy and is priced $200 less than the outgoing 2012 Sonata Hybrid.
Hyundai will continue to offer an industry-exclusive Hybrid Lifetime
Battery Warranty on the 2013 Sonata Hybrid.

2013 SONATA HYBRID PRICING

Model

Engine

Transmission

MSRP

Sonata
Hybrid

2.4L
Atkinson 4-cyl. Hybrid

6-Speed A/T

$25,650

Sonata
Hybrid Limited

2.4L
Atkinson 4-cyl. Hybrid

6-Speed A/T

$30,550

Freight Charges for the 2013MY Sonata Hybrid are $795 and not included
in the prices above.

The 2013 Hyundai Sonata Hybrid increases fuel efficiency and operates in
all-electric mode more often and for longer periods of time, with an
advanced version of the brand's Hybrid Blue Drive architecture. The
improved architecture optimizes electric-only driving by adding a larger
capacity 10.5 kW Hybrid Starter Generator (HSG), higher output 35 kW
electric motor, a more powerful 47 kW Lithium Polymer battery pack and an
optimized hybrid operating strategy. These upgrades are paired with a
2.4-liter Theta II four-cylinder engine that now runs on a more efficient
Atkinson cycle and an enhanced transmission to generate 206 total
horsepower. The new Sonata Hybrid Blue Drive system offers greater fuel
efficiencies by increasing the overall amount of available electrical drive
power, allowing drivers to go further between fill ups.

As in previous Sonata Hybrids, the 2013 Sonata Hybrid features a clutch
to decouple the gasoline engine from the drivetrain. When in pure electric
drive, the Sonata Hybrid can drive electrically up to 75 miles per
hour.

2013 SONATA HYBRID IMPROVEMENTS

HSG

Electric Motor

Output

Battery Output

EPA Estimated

Fuel Economy (mpg)

Fuel Economy Improvement

2012
Sonata Hybrid

vs.

2013
Sonata Hybrid

8.5 kW
--10.5 kW

30 kW
-- 35 kW

34 kW
--47 kW

34
--36 city

39
--40 hwy

36
--38 comb.

6
percent city

3
percent hwy

6
percent comb.

INCREASING ELECTRIC ONLY DRIVING Maximizing electric-only driving results in higher fuel efficiency,
which is the leading factor car buyers look for in a hybrid vehicle.
Hyundai engineers aimed to increase the overall amount of available
electrical drive power and improve the efficiency of the Hybrid Blue Drive
operating system in the 2013 Sonata Hybrid.

Using a higher output 35 kW electric motor and the more powerful 47 kW
Lithium Polymer battery pack, the Hybrid Blue Drive powertrain maximizes
electric-only driving. The improved operating system takes advantage of
newly developed driving pattern detection and engine on/off optimization
logic. The availability of more battery energy allows for greater
flexibility in running the gasoline engine at optimum efficiency, which
saves fuel. Better kinetic energy recovery and increased charging
efficiency powers the Sonata Hybrid in all-electric mode more often and for
longer periods of time, increasing fuel economy.

The 2013 Sonata Hybrid utilizes the all-electric mode at optimal moments
such as highway driving, then saves the gasoline engine start-up for roads
that require a heavier dose of power. All of this translates to money saved
for the driver.

KEY IMPROVEMENTS FOR INCREASED FUEL EFFICIENCY LITHIUM POLYMER BATTERY PACKThe remarkable achievement with 2013 Sonata Hybrid's 47 kW lithium
polymer battery pack is that not only is it more powerful and more energy
dense, but also weighs less and takes up less volume in the trunk. The
weight of the pack has gone from 92.4 pounds to 87.8 pounds while trunk
volume has increased from 10.7 cu. ft. to 12.1 cu. ft. Once again, the
improved efficiency of the battery pack is key to recovering more kinetic
energy from braking and charging from the engine, when needed, to help
propel the vehicle. The newly optimized system allows the battery to store
more usable energy, allowing more all-electric driving, cutting both fuel
consumption and emissions.

HIGHER OUTPUT ELECTRIC MOTORAs the upgraded battery stores more energy, engineers also increased
the output on the electric traction motor from 30 kW to 35 kW. The
increased energy pulled into the system is used for higher torque output in
electric drive mode before the system has to start the internal combustion
engine. The 2013 Sonata Hybrid can now sustain all-electric mode longer
than the previous system. These changes deliver both improved fuel economy
and drivability. The higher output electric motor is also essential to
improving energy capture during regenerative braking.

HYBRID STARTER GENERATORTaking the Hybrid Starter Generator (HSG) from 8.5 kW to 10.5 kW of
capacity provides more charging capacity and, in turn, seamless electric
starts. The HSG is primarily used to improve clutch engagement when
synchronizing engine to transmission speed. The primary traction motor is
coupled to the transmission and cannot be used to charge the hybrid battery
when the car is stationary. If the battery state of charge is low and the
car is stationary, the HSG will automatically restart the engine, which
then charges the Lithium Polymer battery pack.

When the driver releases the brake and presses the accelerator, the
Sonata Hybrid will pull away smoothly and silently in electric drive mode
with the clutch still disengaged. In this mode, the Sonata will briefly
behave like a series hybrid. Once the car is in motion and torque demand
increases, the clutch will engage and send engine tractive effort through
the transmission again.

DRIVEABILITY IMPROVEMENTSIn addition to improving efficiency, Hyundai engineers set their sights
on improving drivability with the following:

Improved hybrid system clutch control

Improved vehicle response by throttle tuning

Optimized regenerative braking shift pattern

Decreased friction in the compact six-speed automatic transmission

AERODYNAMICSThe body of the 2013 Sonata Hybrid remains unchanged, but it still
features the unique exterior that sets it apart from other Sonatas. The
combination of a re-shaped front and rear fascias with a deeper air dam,
extended rocker panels and lower drag wheels allow air to flow around the
body with less resistance. The drag coefficient for the Sonata Hybrid is an
exceptionally low 0.24 that compares favorably to the Porsche 911 GT2 RS
(0.34) and the Nissan GT-R (0.27).

The ability to easily slip through the air, combined with low rolling
resistance tires and the reduced friction in the newly optimized Hybrid
Blue Drive powertrain, significantly reduces the amount of energy required
to maintain highway speeds. The result is the remarkable highway fuel
efficiency of the Sonata Hybrid.

The Hyundai Lifetime Hybrid Battery Warranty ensures that if the Sonata
Hybrid lithium-polymer battery ever needs replacement, Hyundai will replace
the battery and cover recycling costs for the old battery pack
free-of-charge to the original owner. The coverage is not transferrable,
and does not apply to lease and commercial vehicles or vehicles serviced
outside the U.S.

LITHIUM-POLYMER BATTERY TECHNOLOGYThe Sonata Hybrid, with Hyundai's improved Hybrid Blue Drive
technology, has always featured a lithium-polymer battery pack, making
Hyundai one of the first automakers in the world to incorporate this
remarkably efficient battery technology into production vehicles.
Lithium-polymer is the next generation of lithium-ion technology and is
ideally suited to automotive applications thanks to a particularly robust
and reliable chemistry.

The lithium-polymer cells, developed with Hyundai's partner LG Chem, use
a manganese-spinel chemistry that provides an excellent compromise between
power delivery, energy density and thermal stability. Thermal stability is
critical to ensuring durability, effectively eliminating the need to
replace the battery pack during the normal lifespan of the vehicle. The
electrodes in older lithium-ion chemistries expand and contract
significantly with the heating and cooling that naturally occurs during
charging and discharging. This thermal expansion causes cracks in the
electrodes which ultimately reduces the cell's ability to hold a charge.
Manganese-spinel lithium-polymer cells have much lower expansion rates and
are thus able to go through tens-of-thousands of charge cycles even without
having to use a heavier, liquid-cooling system.